Hearing aid



FIG. 1 is a first side view oriented to the hearing aid portion, showing my new design;

FIG. 2 is an opposite side view thereof;

FIG. 3 is a side view oriented along an axis of the earplug portion;

FIG. 4 is an opposite side view thereof;

FIG. 5 is a first end view;

FIG. 6 is an opposite end view;

FIG. 7 is a pictoral view;

FIG. 8 is a side view of the connecting piece portion with the hearing aid and earplug portions removed for ease of illustration;

FIG. 9 is an opposite side view thereof;

FIG. 10 is a first end view thereof;

FIG. 11 is an opposite end view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a top view thereof; and,

FIG. 14 is a pictorial view thereof. 

The ornamental design for a hearing aid, as shown and described. 